DIN EN 301144-5-2001 综合业务数字网.数字用户用1号信令系统和7号信令系统协议.α接口处移动管理服务用信令.第5部分:网络用试验组结构和试验目的规范
时间:2024-05-23 22:10:53 来源: 标准资料网 作者：标准资料网 阅读：9172
【英文标准名称】:IntegratedServicesDigitalNetwork(ISDN)-DigitalSubscriberSignallingSystemNo.one(DSS1)andSignallingSystemNo.7(SS7)protocols;Signallingapplicationforthemobilitymanagementserviceonthealphainterface-Part5:TestSuiteStructurea
【原文标准名称】:综合业务数字网.数字用户用1号信令系统和7号信令系统协议.α接口处移动管理服务用信令.第5部分:网络用试验组结构和试验目的规范
【标准号】:DINEN301144-5-2001
【标准状态】:现行
【国别】:德国
【发布日期】:2001-02
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:数字信号;使用;终端装置;电信设备;电信;规范(验收);综合业务数字网络;数字工程;电路网络;试验系列;信号发送系统;信号传输;接口;管理;方法;电气工程
【英文主题词】:
【摘要】:Thedocumentspecifiesrequirementsinthetelecommunicationssector.
【中国标准分类号】:M11
【国际标准分类号】:33_080
【页数】:1P;A4
【正文语种】:德语
【英文标准名称】:Methodsofsamplingandtestforsodiumcarbonateforindustrialuse-Determinationofsulphatecontent
【原文标准名称】:工业用碳酸钠取样及试验方法.第5部分:硫酸盐含量测定
【标准号】:BS6070-5-1981
【标准状态】:现行
【国别】:英国
【发布日期】:1981-02-27
【实施或试行日期】:1981-02-27
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:碳酸钠;硫酸盐;还原法;容量分析;含量测定
【英文主题词】:Chemicalanalysisandtesting;Chlorides;Connections;Determinationofcontent;Mercurimetricanalysis;Potassiumcarbonate;Reductionmethods;Sodiumcarbonate;Sulphates;Sulphur;Volumetricanalysis
【摘要】:ThisInternationalStandardspecifiesamethod,byreductionandtitrimetry,forthedeterminationofsulphurcompoundscontentofsodiumcarbonateforindustrialuse.Themethodisapplicabletoproductshavingasulphurcompoundscontent,expressedassulphate(SO4),equaltoorgreaterthan5mg/kg.
【中国标准分类号】:G12
【国际标准分类号】:71_060_50;71_080_01
【页数】:8P;A4
【正文语种】:英语
【英文标准名称】:StandardPracticeforContactUltrasonicTestingofWeldsUsingPhasedArrays
【原文标准名称】:相控阵接触式超声对焊接单元检测的标准方法
【标准号】:ASTME2700-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:E07.06
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:nondestructivetesting;phasedarrays;phasedarrayprobe;ultrasoniccontactexamination;ultrasonicNDTofwelds;welds
【摘要】:Industrialphasedarraysdifferfromconventionalmonocrystalultrasonictransducerssincetheypermittheelectroniccontrolofultrasoundbeams.Thearraysconsistofaseriesofindividualtransducerelements,eachseparatelywired,time-delayedandelectricallyisolated;thearraysaretypicallypulsedingroupstopermitx201C;phasing,x201D;orconstructive-destructiveinterference.Thoughprimarilyamethodofgeneratingandreceivingultrasound,phasedarraysarealsoamethodofscanningandimaging.Whilesomescanpatternsemulatemanualtechnology,otherscans(forexample,S-scans)areuniquetophasedarrays.Withtheirdistinctfeaturesandcapabilities,phasedarraysrequirespecialset-upsandstandardization,asaddressedbythispractice.Commercialsoftwarepermitstheoperatortoeasilymakesetupswithoutdetailedknowledgeofthephasingrequirements.Phasedarrayscanbeusedindifferentways:manualorencodedlinearscanning;anddifferentdisplaysorcombinationsofdisplays.Inmanualscanning,thedominantdisplaywillbeanS-scanwithassociatedA-scans.S-scanshavetheadvantageoverE-scansthatallthespecifiedinspectionanglescanbecoveredatthesametime.Themainadvantagesofusingphasedarraysforultrasonicweldexaminationsare:Fasterscanningduetomultipleanglesondisplayatthesametime,BetterimagingfromthetruedepthS-scan,Datastorage,forexample,selectedreflectors,forauditing,andarchiving.Rapidandreproducibleset-upswithelectronicinstruments.Allpersonnelresponsibleforcarryingoutexaminations,analysisandreportingresultsusingthisstandardshouldbeappropriatelytrainedandqualifiedinaccordancewithanationallyorinternationallyrecognizedNDTpersonnelqualificationpracticeorstandardsuchasANSI/ASNTCP-189,SNT-TC-1A,NAS-410,orasimilardocumentandcertifiedbytheemployerorcertifyingagency,asapplicable.Additionally,thereshouldalsobetrainingorknowledgeandexperiencerelatedtophasedarrayequipmentandtechniques.Personnelperformingexaminationstothisstandardshouldlistthequalifyingcredentialsintheexaminationreport.1.1Thispracticedescribesultrasonictechniquesforinspectingweldsusingphasedarrayultrasonicmethods(seeNote1).1.2Thispracticeusesanglebeams,eitherinS-scanorE-scanmodes,primarilyforbuttweldsandTeewelds.Alternativeweldingtechniques,suchassolidstatebonding(forexample,frictionstirwelding)andfusionwelding(forexample,electronbeamwelding)canbeinspectedusingthispracticeprovidedadequatecoverageandtechniquesaredocumentedandapproved.Practicesforspecificgeometriessuchasspotweldsarenotincluded.Thepracticeisintendedtobeusedonthicknessesof9to200mm(0.375to8in.).Greaterandlesserthicknessesmaybetestedusingthisstandardpracticeifthetechniquecanbedemonstratedtoprovideadequatedetectiononmockupsofthesamewallthicknessandgeometry1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.Note18212;Thispracticeisbasedonexperiencewithferrousandaluminumalloys.Othermetallicmaterialscanbeexaminedusingthispracticeprovidedreferencestandardscanbedevelopedthatdemonstratethattheparticularmaterialandweldcanbesuccessfullypenetratedbyanultrasonicbeam.